Can you tell me what the ID'd are for the rotor bearing and stationary
   gear bearings? I am also curious as to how the "Guru" needle bearing
   attaches to the center housing. I see the snap rings and the note of the
   machining requirements.

   Rob Woods

   I assume you have the shop manuals. The recent shop manuals
   give the diameters in the technical section at the end of the
   manuals. The 13B journals diameters are 43 mm mains and
   74 mm rotor journals. The clearances are given in the front part
   of the manuals in the Inspection/Wear section.

   You can download the manuals from here:

   http://www.wankel.net/~krwright/cars/rx7/manuals.html
   <parse.pl?redirect=http%3A%2F%2Fwww.wankel.net%2F%7Ekrwright%2Fcars%2Frx7%2Fmanuals.html>
   This web site is listed on the ACRE NL web site
   under http://www.rotaryeng.net/interesting.html
   <parse.pl?redirect=http%3A%2F%2Fwww.rotaryeng.net%2Finteresting.html>

   As far as the Guru center main roller bearing attachment
   is concerned my guess is it is pressed in. All I have are these
   pictures.
   --
   Paul Lamar ...No rotor no motor.



The Guru unit requires machining the center housing for the BRG and snap
rings.  Then the brg outter race is turned down to match the housing
(they want minimal material out of the housing).  It's not something I'd
put in a plane...  It's for high boost and high rpm race engines.  I
doubt anyone here is looking for a 15 hr TBO!

Tom
CLMotorsports

Sounds like drag racing. Why would anybody put in a center
main if it reduces the TBO from 2000 hours to 15 hours?
Does not make sense.

Paul Lamar ...No rotor no motor.

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